Race for ball and cylinder bearings.



C. A. HIRTH. RACE FOR BALL AND CYLINDER BEARINGS.

APPLICATION fILED MAILZM I9I5.

Patented Sept. 5, 1916 INVENTOR 6/ M 5/ Z W ATTORNEY WITNESSES COMFAGNIEESELL$CHAFT MIT BES CHRAEINKTER HAFTUNG. OF CANNSTATT- ST'iFTTQdRT WiTRlEITEMBERG, GERMANY, A CORPORATION OF GERMANY.

FOR BALL AND CYIEHDEB BEARINGS.

Specification of Letters Patent.

Patented Sept. 5, 1591.6.

declination rues March 24, 1915. Serial No. 16,768.

To 'i'i ieffii fit me y confirm lie known that ii, CARL ALBERT HIRTH, acitizen of the German Empire, and residting iii ifunestett-Sruttgert, inthe Kingdom of ivurttemherg in. said Empire, have 1nvented certain newand useful Improvementsin Races for Bell and Cylinder Bearings of whichthe following is s specification.

This invention relates to a race ring for roller hes either hail orcylindrical, composed of sections, preferably constructed from are orrods bent into arc-shape and. having their fibers concentric to therunway recs ring. The shutting ends of the 0!. L sections hove iocsinglugs which do not protrude heyond the neriphery of the hand.

'lhe invention is shown in the accompanyins: drawing, and will he morefully descrllml hereinafter and finally pointed out in the claims.

in the scronipeuying drawings, Figure 1 is a side view of e portion ofmy improved ring; with the binding member partly in section, and Fig. .5is e. plan view thereof.

Similar reference numerals indicate corresponding throughout the figuresof the drawing.

Referring to the drawing, the race ring, in the embodiment shown,consists of a ball bearing of two parts a and b, which in the well-knownmanner ahut at the ends against each other with convex and concavecylin'- drical surfaces 0 and c and which.v are ground on their innerfaces to form a run (Z for the bulls. The two race parts a and sreformed by hending into a semicircular shape, drawn or rolled rods ofsquare cross section, so that the direction of the fibers is in circlesconcentric to the race.

In order that the abutting joint 0 maybe held tightly together, iheparts after exact grinding of the abutting ends are pressed upon eachother, and then the abutting ends are provided with special cutoutportions 1: of such form, as is seen in Fig. 1, that projections or lugsf formed on opposite" sides or .Uld parted by the joint, and whichextend radially outwardly. These lugs f are embraced by a clampingdevice. As such a. clamping device, a simple ring 9 is provided with apartlyoval or partly elliptical opening of such size end measurementthat the smallest width of the opening corresponds with the externaldiameter of the projections or lugs; while the greater width, however,permits a very easy embracing of the lugs f by the ring 9 on theapplication thereof. The clamping ring 9, which is thus placed on theprojections f of the race ring, need only he turned around 90 by a suitable. key or well-known construction (not shown) applicable to theflattened surfaces h of the ring 9', in order to press the abut tingends of the parts a and I) together with suiiicient force. Preferablyalso, but it is not entirely necessary, the inner opening of theclamping ring 9, as may be seen from Fig. 1, may be tapered at one side,as indicated at m, and the projection f in this case can be, arrangedcorrespondingly conical as indicated'hy m".

An important advantage of the connection described lies in the smallspace that is' required when using the ring 9. When such economy inspace is not considered essential, any other connection is applicable,as long as no projecting parts on the inner profile of the ring are.produced.

. I have shown an embodiment of my in vent-ion, but it is clear thatchanges may be made therein without. departing from the spirit thereofas defined in the appended claims.

I claim 7-.

1. A race ring for roller bearings comprising sectional arc-shapedmembers provided at their abutting ends with exterior recesses forminglugs flush with the periphof the race ring "on opposite sides of thejoint between the sections, and oval ring clamps turneble in saidrecesses and engaging adjacent lugs for locking the sections.

2. A race ring for roller bearings comprising sectional arc-shapedmembers provided at their abutting ends with exterior recesses-formingdovetailed lugs flush with the periphery of the race ring on oppositesides of the joint between the sections and oval ring clamps turnaole insaid recesses and engaging adjacent lugs forlocking the sections.

3. A race ring for roller bearings cornprising sectional arc-shapedmembers provided with radial lugs at their abuttins ends and ovalclamping rings engaging said lugs:

.and turnable thereon for locking said sections together.

4. An improved race ring for balls and rollers, comprising a runconcentric to the direction of the fibers, lugs projecting out- Wardlyfrom the run at the abutting ends of the run, the abutting ends of thelugs being flush, and clamping means embracing the lugs and holding theabutting surfaces of the lugs tightly together.

5. A race ring for roller bearings comprising sectional arc-shapedmembers pro vided at their abutting ends with exterior recesses forminglugs flush with the periphery of .the race ring on opposite sides of thejoint between the sections and locking means entering said recesses andengaging said lu s.

6 A race ring for roller bearings'comprising a split ring provided atits abutting ends with exterior recesses forming lugs flush with theperiphery of the race ringon opposite sides of the joint, and an ovalring clamp turnable in said recesses and engaging said lugs for lockingsaid split ring.

7. A race ring for a roller bearing comprising a split ring provided atits abutting ends 'with lugs, and an oval ring clamp turn able on saidlugs for locking said ring.

8. A race ring for a roller bearing comprising -a split ring provided atits abutting ends with dovetailed lugs, and a dove tailed oval ringclamp turnable on said lugs for locking said ring.

.9. A race ring for a roller bearing comprising sectional arc-shapedmembers pro vided recesses forming lugs and clamping rings embracingsaid lugs.

In testimony, that I claim the foregoing as my invention, I have signedmy name in presence of two subscribing witnesses.

CARL ALBERT HIRTH.

Witnesses:

ERNEST ENTLEMANN, EUGEN SCHLEICHER.

at their abutting ends With exterior

